[[Flynn]] moved [[Tron]], a security program from the [[ENCOM]] mainframe, to the TRON system to act as head of system security and maintain order. After the emergence of the [[ISO]]s, [[Clu 2|Clu]] and several system monitors performed terrorist attacks against ISO-populated areas of the [[Grid]]. Despite this, most system monitors continued to perform their role of protecting the TRON system. When the [[Abraxas]] virus was unleashed, the system monitors were quickly repurposed into [[Sentry|sentries]] and sent to fight against infected programs.

[[Flynn]] moved [[Tron]], a security program from the [[ENCOM]] mainframe, to the TRON system to act as head of system security and maintain order. After the emergence of the [[ISO]]s, [[Clu 2|Clu]] and several system monitors performed terrorist attacks against ISO-populated areas of the [[Grid]]. Despite this, most system monitors continued to perform their role of protecting the TRON system. When the [[Abraxas]] virus was unleashed, the system monitors were quickly repurposed into [[Sentry|sentries]] and sent to fight against infected programs.

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Following the coup d'etat against Kevin Flynn, the system monitors, now known as sentries, acted as Clu's personal military force to control the Grid's populace.

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Following the coup d'état against Kevin Flynn, the system monitors, now known as sentries, acted as Clu's personal military force to control the Grid's populace.

A System Monitor is a security program tasked with maintaining system integrity from internal threats such as gridbugs, rogue programs and viruses.

Flynn moved Tron, a security program from the ENCOM mainframe, to the TRON system to act as head of system security and maintain order. After the emergence of the ISOs, Clu and several system monitors performed terrorist attacks against ISO-populated areas of the Grid. Despite this, most system monitors continued to perform their role of protecting the TRON system. When the Abraxas virus was unleashed, the system monitors were quickly repurposed into sentries and sent to fight against infected programs.

Following the coup d'état against Kevin Flynn, the system monitors, now known as sentries, acted as Clu's personal military force to control the Grid's populace.